[交流] 【求助】求Matlab循环作图

Originally posted by may4170941 at 2010-11-30 14:54:13:
⊙﹏⊙b汗 plot+hold on
t=0:0.1:20;

x1=cos(t) ;  
x2=sin(t);
x3=cos(t)+sin(t);

plot(x1,'r-')
hold on
plot(x2,'g*')
hold on
plot(x3,'b^')

Originally posted by may4170941 at 2010-11-30 14:48:14:
什么循环不是很懂，是不是就是在一幅图上表示三个函数的图？